Update git submodules

* Update docs/submodules/policy/apex-pdp.git from branch 'master'
  to d0870f118020464467dd34a980445792a30127d4
  - Merge "Increase test coverage for plugins-event-carrier"
  - Increase test coverage for plugins-event-carrier

    Add basic JUnit test cases for plugins-event-carrier-restserver

    Issue-ID: POLICY-1513
    Change-Id: I36e41bd05be71c44eb9e94350f4614437b0d205b
    Signed-off-by: Parshad Patel <pars.patel@samsung.com>

diff --git a/docs/submodules/policy/apex-pdp.git b/docs/submodules/policy/apex-pdp.git
index efd0a25..d0870f1 160000 (submodule)
--- a/docs/submodules/policy/apex-pdp.git
+++ b/docs/submodules/policy/apex-pdp.git
@@ -1 +1 @@
-Subproject commit efd0a257cf6a81a62ec18962eae1d5c1cf87bcda
+Subproject commit d0870f118020464467dd34a980445792a30127d4